Onder TURKMEN, Suat SENSOY, Yasemin GORGUN

Determination of suitable sowing dates for spinach production in Van ecological condition

Van koşullarında ıspanak yetiştiriciliği için uygun ekim zamanlarını belirlemek amacıyla iki yıl yürütülen bu çalışmada, sonbahar ekimi-ilkbahar hasadında üç ekim zamanı (Ekim ayı ortası, Kasım ayı başı ve ortası), ilkbahar ekimi-ilkbahar hasadında ise dört ekim zamanı (Mart ayı ortası, Nisan ayı başı, ortası ve sonu) uygulanmıştır. Birinci yıl Meridian ve Spinoza çeşitleri, ikinci yıl ise sadece Spinoza çeşidi kullanılmıştır. İlk yıl tohum ekim zamanları içerisinde en yüksek toplam verim, ortalama 4.00 t/da ile Ekim ayı ortası ekim zamanından elde edilmiştir. İlk yıl Spinoza çeşidinin ortalama verimi, Meridian çeşidinin ortalama veriminden 0.31 t/da daha yüksek bulunmuştur. İkinci yıl tohum ekim zamanları içerisinde en yüksek toplam verim, 4.57 t/da ile yine Ekim ayı ortası ekim zamanından elde edilmiştir. Her iki yılda da ilkbahar ekimlerinde sapa kalkma sorunuyla karşılaşılmıştır.

Van ekolojik koşullarında ıspanak üretimi için uygun ekim zamanlarının belirlenmesi

To determine the appropriate sowing time in Van conditions for the cultivation of spinach in this study conducted two years, three sowing dates for autumn sowing-spring harvest (mid-October, the beginning and middle of November), four sowing dates for spring sowing-spring harvesting (mid-March , beginning, middle and end of April) were conducted. The first year, cv. Meridian and cv. Spinoza were used in the study and in the second year only cv. Spinoza was used in the study. Among the seed sowing times within the first year, the highest total yield (average 40.0 t ha-1) was obtained by sowing in the middle of October. The first year the average yield of cv. Spinoza was 3.1 t ha-1 higher than that of cv. Meridian. Among the seed sowing times in the second year, the highest total yield (45.7 t ha-1) was obtained again from the time of sowing in mid-October. In both years, spring sowing encountered the problem of bolting.

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